/*
 * Copyright (c) 2012 Robert Burrell Donkin robertburrelldonkin.name
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software 
 * and associated documentation files (the "Software"), to deal in the Software without restriction, 
 * including without limitation the rights to use, copy, modify, merge, publish, distribute, 
 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software 
 * is furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in all copies or 
 * substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING 
 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 * 
 */
package walrus.text.concise;

import walrus.base.CharProcessor;
import walrus.text.Chars;

public class ConciseWordCounter implements CharProcessor {

	private final WordCount master = new WordCount();
	private WordCount current = master;
	
	public WordCount getMaster() {
		return master;
	}

	public CharProcessor process(char next) {
		if (Chars.isPunctuation(next) || Chars.isWhitespace(next)) {
			word();
		} else {
			advance(next);
		}
		return this;
	}

	private void advance(char next) {
		current = current.next(next);
		if (current == null) {
			current = master;
		}
	}

	private void word() {
		current.inc();
		current = master;
	}
	
	public void eof() {
		word();
	}
}
